lost data

I was sorting a bunch of miscellaneous comments from word documents into one document. The one document had been titled and saved after one comment was put in it. Then I spent an hour cut and pasting paragraphs from other documents into that document. Then I was closing a bunch of other documents and when I got to this one, I clicked "don't save" instead of "save" by mistake. So the document saved without all of the added data. Is there any way to retrieve the document as it was before I clicked "don't save" after closing it?

"If I check that box, how often does it create back up copies? In other words, had I had that box checked, how much data would have been saved?"

Auto recovery and auto save in Office 2011 is unreliable and seldom works. What you are experiencing has been reported over and over in the MS Office forums. That's why we advise Office users to always select make a backup. If you had done that, the last version (change) of your document would have been saved.

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